Door-securer.



F. F. (in M. .F. DUNN.

noon SBGURER, APPLICATION FILED JULY 27,1908.

Patented Jan. 5,1909.

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UNITED STATES PATEN OFFXCE.

FRANK F. DUNN, OF SPRINGFIELD, AND MICHAEL FRANGLER DUNN, OF LONDON,OHIO.

DOOR-SEGURER.

To all whom it may concern:

Be it known that we, FRANK F. DUNN, a citizen of the United States,residing at Springfield, Clark county, Ohio and MIOHAEL FRANOLER DUNN, acitizen of the United States, residing at London, in the county ofMadison and State of Ohio, have invented certain new and usefulImprovements in Door-Securers; and we do declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to an improved door securer.

The object of the invention is to provide a simple and efficient meansfor fastening a door on the inside to prevent it from being opened fromthe outside, thereby guaranteeing absolute security against skeleton andother keys.

With these and other objects in view, the invention consists of certainnovel features of construction, combination and arrangement of parts, aswill be more fully described and particularly pointed out in theappended claim.

In the accompanying drawings, Figure 1 represents a horizontal sectionthrough a closed door and easing showing one form of this improvedfastener applied, Fig. 2 is a perspective View of the fastener detached.

In the embodiment illustrated in Figs. 1 and 2 a door 1 and jamb 2 ofordinary construction are shown. This j amb 2 is provided with the usualrecess 3 to receive the catch member of the doorlock. The fastener shownin Figs. 1 and 2 comprises a plate 4 having a tongue 5 at one endthereof bent to form a loop and having a block 6 secured therein, andwhich is designed to be inserted in the recess 3 of the door jamb withthe plate 4 projecting inside the room at right angles to the inner faceof the door, the end of said plate adjacent to the block carrying atongue lying between the inner face of the jamb and the edge of the doorwhen the door is closed. This plate is provided near the tongue carryingend thereof with two series of longitudinally spaced apertures as 7 andS, the apertures 7 being preferably arranged near one edge of the plate,and those 8 near the other edge thereof, for a purpose to be described.Another series of longitudinally spaced apertures as 9 are formed at theother Specification of Letters Patent.

Application filed July 27, 1908.

Patented Jan. 5, 1909.

Serial No. 445,526.

end of the plate between and in a plane parallel with the series 7 and 8to receive one end of a brace member now to be described. This bracemember preferably comprises an approximately V-shaped member 10 havingthe free ends thereof bent downwardly, then outwardly and thendownwardly again to form hooks 11 and 12, which are adapted to extendthrough one of the apertures of each series 7 and 8 and engage theopposite side of the plate. The apex of this V-shaped loop is preferablybent downwardly as shown, and a locking member or brace 13 is securedthereto by means of an eye 14, and the free end of this brace 13 is bentto form a hook-like member 15, adapted to extend through one of theapertures as 9 at the other end of the plate 4 to lock said brace member10 in operative position with the lugs thereof bearing against the faceof the door, as is shown in Fig. 1. This plate 4 is preferably made ofsheet steel, or any other suitable material and the three rows ofapertures formed therein may be arranged either in a straight line orzigzag, and any number of holes for each series provided. The bent endsof the member 10 are designed to give sufficient spring to permit thebrace 18 when pressed down to slide in one of the holes of the series 9.

A wedge 16 of wood or any other suitable material is designed to beslipped between the edge of the door casing and the plate 1 after thelatter is placed in position.

This little keyless lock will guarantee security to the occupant ofthe'room on which it is used against skeleton keys in the hands ofburglars or others, and against duplicate keys in the hands ofunscrupulous servants and gives to the occupant privacy when desired.

From the foregoing description, taken in connection with theaccompanying drawings, the construction and operation of the inventionwill be readily understood. without requiring a more extendedexplanation.

Various changes in the form, proportion and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of this invention as defined in theappended claim.

Having thus described our invention, what we claim and desire to secureby Letters Patent is:

A door securer comprising a plate having 10 said member and having meansfor detachmeans for engaging the door j amb and proable engagement withthe series of apertures vided with laterally spaced longitudinally atthe other end of said plate. extending series of apertures at one end,and In testimony whereof we have hereunto with another series ofapertures at its other setour hands in presence of two subscribing endarranged in a plane between said spaced witnesses.

series, an approximately V-shaped member FRANK F. DUNN. having the freeends thereof bent to form 5 M. FRANCLER DUNN. hooks for engagement withsaid laterally Witnesses:

spaced apertures, and a brace connected with ANNA EMERY,

| GUY UNDERWOOD.

